Huawei FusionDC1000A - Replacing a Heat Detector (CE)

4.5.2 Replacing a Heat Detector (CE)
Prerequisites
A spare heat detector of the same model is available and functional.
Impact on the System
The re extinguishing system stops working during the replacement.
Preparations
Tools: protective gloves, step ladder, Phillips screwdriver
Materials: spare heat detector
Documents:
re extinguishing drawings and parameters
Skill requirement: re engineer
NO TICE
Before replacing the heat detector, inform the related administration department
of the temporary downtime of the re control system. After the replacement,
inform the administration department that the system has become operational.
Procedure
Step 1 Disconnect the battery cables, and switch o the input circuit breaker of the
extinguishant control panel.
Step 2 Hold the heat detector, and rotate it counterclockwise to remove it from the base.
Figure 4-96 Removing a heat detector
Step 3 Remove cables from the base.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 147